Self-acting wagon-brake



A 12 sheets-sheen 1. G. BUCHANAN. WAGON LOCK.

Patented Aug. 28,71860.

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Q.BUCHANAN. WAGON LOCK.

No. 29,764. Y Patented Aug. 28, 186.0.

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GEORGE BUCHANAN, OF HICKORY, PENNSYLVANIA.

SELF-ACTING WAGON-BRAKE.

Specification of Letters Patent No. 29,764, dated .August 28, 1860.

To all whom t may concern.'

Be it known that I, GEORGE BUCHANAN, of Hickory, Washington county, inthe State of Pennsylvania, have invented certain new and usefulImprovements in lagon-Locks; and I do hereby declare that the followingis a full and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon.

The nature of my invention consists in an arrangement of brake, bar,cords or chains, springs, pulleys, and operating rods, when used inconnection with cars, wagons and carriages, the whole being arranged,combined, constructed and operated in the manner hereinafter described.

To enable others skilled in the art to make and use my invention I willproceed to describe .its construction and operation.

In the accompanying drawings, Figure l, is a perspective view of thewagon. Fig. 2, is a top View of the wagon, with the bed removed from offthe running gear. Fig. 3, represents an underside view of the wagon,with the bed removed. Fig. 4, is a face view of a wheel and representsthe position of the brake.

(a), are the wheels; (c), are the aXletrees; are the back-hounds; (f) isthe coupling pole; (n) are the front-hounds; (Z), is the wagon tongue;are the holsters on which the bed of the wagon rests; (s), are rings forthe breast-chains; (b), is the wagon bed; (p), is a block placed in thewagon bed to represent a weight or load.

The inner end of the hubs of the hind wheels are constructed so as toform a pulley furnished with a flange marked (it), around the hubs ofthe hind wheels are placed cords or chains Qd), one end of which issecured to the bar (g), and the other end is secured to the brake (e).

(o) are the rubbers which are secured to the brake (e).

(m) is an operating rod which is attached to the bar (g).

(m) is an operating rod which is attached to rod (as) and is held to itsplace on the under-side of the tongue by means of two staples. Attachedto the endof rod is a strap to which is secured a ring c (g) are springswhich are used for the purpose of holding the brakes off from thewheels.

(fu) are springs which are used for the purpose of drawing back the bar(g), so as to slacken the cords or chains (d) on the hubs of the hindwheels.

The brake is arranged so as to bear against the periphery of the hindwheels on a line below-their center, represented by line 5 in Fig. 4.The strap (y) moves on the pulley which is placed at the end of thewagon tongue (Z).

The operation of my invention is as follows: The ring (t) is connectedwith the breeching of the harness on the horses by means of straps orother suitable device. To brake or lock the hind wheels, the horses aremade to hold back, which will cause the strap to draw the rods (m andand the bar (g) forward, which will bring the brake (e) to bear againstthe hind wheels, and tighten the cords or chains (d) on the hubs. I/Vhenthe horses cease to hold back, the springs will force the brake (c)forward and og from the wheels, and the springs (c) will draw the barback, and thereby slacken the cords or chains on the hubs. It will beobserved that when it is necessary to back the wagon the brake will notbear against the wheels, the back motion of the wheels will slacken thecords or chains. And it will also be observed that the forward motion ofthe hind wheels has a great tendency to tighten the cords or chains onthe hubs, which will greatly assist in bringing the brake (c) to'bearagainst the wheels.

Having thus described the nature construction and operation of myimprovement, what I claim as of my invention, and desire to secure byLetters Patent of the United States, is-

The arrangement of the brake (e), bar (g), rods (an, and m), strap (y),springs (g, and o), and cords or chains (d), when used in combinationwith cars, wagons and carriages, the whole being arranged, combined,constructed and operated as herein described and for the purpose setforth.

GEORGE BUCHANAN.

Vitnesses:

GEORGE P. STECE, JAMES J. JOHNSTON.

